[Bug tree-optimization/97630] [11 Regression] SLP vectorizer leaks memory

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97630

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <rgue...@gcc.gnu.org>:

https://gcc.gnu.org/g:feb93adf76eda52385a73eb57c5bef7c870a2564

commit r11-5661-gfeb93adf76eda52385a73eb57c5bef7c870a2564
Author: Richard Biener <rguent...@suse.de>
Date:   Wed Dec 2 14:43:59 2020 +0100

    tree-optimization/97630 - fix SLP cycle memory leak

    This fixes SLP cycles leaking memory by maintaining a double-linked
    list of allocatd SLP nodes we can zap when we free the alloc pool.

    2020-12-02  Richard Biener  <rguent...@suse.de>

            PR tree-optimization/97630
            * tree-vectorizer.h (_slp_tree::next_node,
            _slp_tree::prev_node): New.
            (vect_slp_init): Declare.
            (vect_slp_fini): Likewise.
            * tree-vectorizer.c (vectorize_loops): Call vect_slp_init/fini.
            (pass_slp_vectorize::execute): Likewise.
            * tree-vect-slp.c (vect_slp_init): New.
            (vect_slp_fini): Likewise.
            (slp_first_node): New global.
            (_slp_tree::_slp_tree): Link node into the SLP tree list.
            (_slp_tree::~_slp_tree): Delink node from the SLP tree list.